'Beyond The Door' (1974) - Ovidio G. Assonitis & Roberto Piazolli.

This anatomically twisted, trimester tripping, antenatal nightmare is funkier than The Exorcist's sinfully anointed crucifix! That being said, the more timorous fear-seeking frightlings should, perhaps, seek their less spooksome cinematic sensations elsewhere, since the ungodly crude, fatally F'd up fetus makes Rosemary's Baby look like a Cabbage Patch Kid! 

The foul-mouthed progeny borne of this preternaturally perverse pregnancy will fearfully fertilize the sinister seeds of sordid shock deep within your B-Horror worshipping bowels! This iniquitous celluloid conception was ANYTHING but immaculate! Witness, if you DARE, the bloodiest birth of plasenta-shredding savagery in the brimstone-blasted, barnstormingly blasphemous 70s schlock horror classic 'Beyond The Door' aka 'Chi sei?' - What lies Beyond The Door?...The devil's waiting womb!!!!!   

'There's NO known cure for terminal STD: Satanically Transmuted DNA!!!!!!!!!!! - Weirdlingwolf.